Datagram test configure failure notices from Jenkins

[kuujo]

Jenkins is showing failures for the datagram test_configure test, but I'm not able to reproduce the test failure, and I can't immediately see what the cause is. The failure is on an assertion related to a simple property change, so it seems odd that the behavior is inconsistent.

@normanmaurer have you seen the test output? Do you have any ideas as to why this would fail? I'm stumped, and hopefully it's not just because I didn't get enough sleep last night...

[kuujo]

By the way, this is the line I'm seeing failures at:
https://github.com/vert-x/mod-lang-jython/blob/master/src/test/python_scripts/core/datagram/test_client.py#L216

I double checked the Python getter, setter, and property, and they're all good.